Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jiankuai Diao"'
Publikováno v:
Acta Materialia. 56:2585-2591
In order to better understand the interplay of diffusion and interfacial processes in nucleation phenomena we have performed kinetic Monte Carlo simulations of a lattice gas model with realistic but generic microscopic dynamics. These simulations are
Publikováno v:
Acta Materialia. 54:643-653
We performed atomistic simulations to study the effect of free surfaces on the yielding of gold nanowires. Tensile surface stresses on the surfaces of the nanowires cause them to contract along the length with respect to the bulk face-centered cubic
Publikováno v:
Journal of Engineering Materials and Technology. 127:417-422
First principle, tight binding, and semi-empirical embedded atom calculations are used to investigate a tetragonal phase transformation in gold nanowires. As wire diameter is decreased, tight binding and modified embedded atom simulations predict a s
Publikováno v:
Nano Letters. 4:2431-2436
Atomistic simulations are used to investigate the yield strength of experimentally observed atomic and nanometer scale gold wires. The atomistic predictions of strength are quantitatively consistent with discrete experimental measurements and they re
Publikováno v:
Journal of the Mechanics and Physics of Solids. 52:1935-1962
We performed atomistic simulations to study the effect of free surfaces on the structure and elastic properties of gold nanowires aligned in the 〈1 0 0〉 and 〈1 1 1〉 crystallographic directions. Computationally, we formed a nanowire by assembl
Publikováno v:
Nano Letters. 4:1863-1867
We performed atomistic simulations to study the yield mechanisms in gold nanowires. Perfect fcc gold nanowires all yield via the nucleation and propagation of {111}〈112〉 partial dislocations. The magnitude of the yield stress is much larger in te
Publikováno v:
Nature Materials. 2:656-660
Several researchers have demonstrated, through experiments and analysis, that the structure and properties of nanometre-scale materials can be quite different to those of bulk materials due to the effect of surfaces. Here we use atomistic simulations
Publikováno v:
Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2012, 101 (22), pp.221903. ⟨10.1063/1.4766266⟩
Applied Physics Letters, 2012, 101 (22), pp.221903. ⟨10.1063/1.4766266⟩
Applied Physics Letters, American Institute of Physics, 2012, 101 (22), pp.221903. ⟨10.1063/1.4766266⟩
Applied Physics Letters, 2012, 101 (22), pp.221903. ⟨10.1063/1.4766266⟩
International audience; A large effect of pressure on the thermal conductance of silicon/carbon nanotube junctions is shown to result from induced anharmonicity at the interface. Through atomistic simulations, we demonstrate the opening of pressure i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc559edbf893bb50df5a4ab6d9d65639
https://hal.archives-ouvertes.fr/hal-01285849
https://hal.archives-ouvertes.fr/hal-01285849
Autor:
David C. Miller, Neil West, Mellisa J. Talmage, David L. McDowell, P.M. Gullett, Mark F. Horstemeyer, Martin L. Dunn, Jiankuai Diao, Ken Gall, Kevin Spark, Jonathan A. Zimmerman
Lightweight and miniaturized weapon systems are driving the use of new materials in design such as microscale materials and ultra low-density metallic materials. Reliable design of future weapon components and systems demands a thorough understanding
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a4479bbf4e8a85ef27a68196459a5cd
https://doi.org/10.2172/894747
https://doi.org/10.2172/894747
Publikováno v:
Physical Review B. 70
Atomistic simulations with modified embedded atom method (MEAM), embedded atom method (EAM) and surface embedded atom method (SEAM) potentials reveal that, at certain sizes, a face centered cubic (fcc) gold $⟨100⟩$ nanowire reorients into an fcc